FR1508845A - Polyphase protection relays - Google Patents
Polyphase protection relaysInfo
- Publication number
- FR1508845A FR1508845A FR92311A FR92311A FR1508845A FR 1508845 A FR1508845 A FR 1508845A FR 92311 A FR92311 A FR 92311A FR 92311 A FR92311 A FR 92311A FR 1508845 A FR1508845 A FR 1508845A
- Authority
- FR
- France
- Prior art keywords
- polyphase
- protection relays
- relays
- protection
- polyphase protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/265—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents responsive to phase angle between voltages or between currents
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/28—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/38—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current
- H02H3/382—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current involving phase comparison between current and voltage or between values derived from current and voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/38—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current
- H02H3/385—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current using at least one homopolar quantity
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Protection Of Transformers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3579/66A GB1175071A (en) | 1966-01-26 | 1966-01-26 | Improvements in Polyphase Protective Relays |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1508845A true FR1508845A (en) | 1968-01-05 |
Family
ID=9761009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR92311A Expired FR1508845A (en) | 1966-01-26 | 1967-01-24 | Polyphase protection relays |
Country Status (3)
Country | Link |
---|---|
US (1) | US3512046A (en) |
FR (1) | FR1508845A (en) |
GB (1) | GB1175071A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2385247A1 (en) * | 1977-02-10 | 1978-10-20 | Gen Electric | PROTECTION RELAY CIRCUIT |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3176190A (en) * | 1960-12-16 | 1965-03-30 | Gen Electric | Phase-comparison protective relaying system |
GB1021502A (en) * | 1961-03-03 | 1966-03-02 | English Electric Co Ltd | Improvements in and relating to electrical protective relay systems |
GB1096413A (en) * | 1964-04-28 | 1967-12-29 | English Electric Co Ltd | Electrical protective relays |
US3374399A (en) * | 1966-02-01 | 1968-03-19 | Gen Electric | Distance protective relaying |
-
1966
- 1966-01-26 GB GB3579/66A patent/GB1175071A/en not_active Expired
-
1967
- 1967-01-24 FR FR92311A patent/FR1508845A/en not_active Expired
- 1967-01-25 US US611731A patent/US3512046A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2385247A1 (en) * | 1977-02-10 | 1978-10-20 | Gen Electric | PROTECTION RELAY CIRCUIT |
Also Published As
Publication number | Publication date |
---|---|
GB1175071A (en) | 1969-12-23 |
US3512046A (en) | 1970-05-12 |
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